WO2004038801A3 - Light emitting diode assembly for ac operation and methods of fabricating same - Google Patents

Light emitting diode assembly for ac operation and methods of fabricating same Download PDF

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Publication number
WO2004038801A3
WO2004038801A3 PCT/US2003/031335 US0331335W WO2004038801A3 WO 2004038801 A3 WO2004038801 A3 WO 2004038801A3 US 0331335 W US0331335 W US 0331335W WO 2004038801 A3 WO2004038801 A3 WO 2004038801A3
Authority
WO
WIPO (PCT)
Prior art keywords
led
anode
cathode
active element
header
Prior art date
Application number
PCT/US2003/031335
Other languages
French (fr)
Other versions
WO2004038801A2 (en
Inventor
David Charles Hall
Original Assignee
Cree Inc
David Charles Hall
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cree Inc, David Charles Hall filed Critical Cree Inc
Priority to AU2003277253A priority Critical patent/AU2003277253A1/en
Priority to JP2004546783A priority patent/JP2006504265A/en
Priority to CA002501686A priority patent/CA2501686A1/en
Priority to EP03809537A priority patent/EP1554755A2/en
Publication of WO2004038801A2 publication Critical patent/WO2004038801A2/en
Publication of WO2004038801A3 publication Critical patent/WO2004038801A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
    • H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Led Device Packages (AREA)

Abstract

A light engine comprises a pair of LED active elements mounted on a common header having first and second terminals. The first terminal is connected to the cathode of the first LED active element and the anode of the second LED active element, while the second terminal is connected to the anode of the first LED active element and the cathode of the second LED active element, thereby connecting the LEDs in an anti-parallel arrangement. A light engine having a single insulating or semi-insulating substrate having formed thereon plural LED active elements with associated p- and n-type contacts forming cathode and anode contacts, respectively, for each LED active element is also provided. The LED active elements may be mounted in a flip-chip configuration on a header having a plurality of leads. The header may include a pair of leads adapted such that two LEDs may be flip-mounted thereon with the anode of the first LED and the cathode of the second LED contacting one lead, while the cathode of the first LED and the anode of the second LED contact the other lead. In addition, the header may be adapted to permit a substrate having multiple active elements to be mounted thereon.
PCT/US2003/031335 2002-10-22 2003-10-02 Light emitting diode assembly for ac operation and methods of fabricating same WO2004038801A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2003277253A AU2003277253A1 (en) 2002-10-22 2003-10-02 Light emitting diode assembly for ac operation and methods of fabricating same
JP2004546783A JP2006504265A (en) 2002-10-22 2003-10-02 Light emitting diode assembly for AC operation and manufacturing method thereof
CA002501686A CA2501686A1 (en) 2002-10-22 2003-10-02 Light emitting diode assembly for ac operation and methods of fabricating same
EP03809537A EP1554755A2 (en) 2002-10-22 2003-10-02 Led light engine for ac operation and methods of fabricating same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/277,845 US7009199B2 (en) 2002-10-22 2002-10-22 Electronic devices having a header and antiparallel connected light emitting diodes for producing light from AC current
US10/277,845 2002-10-22

Publications (2)

Publication Number Publication Date
WO2004038801A2 WO2004038801A2 (en) 2004-05-06
WO2004038801A3 true WO2004038801A3 (en) 2004-10-07

Family

ID=32093361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/031335 WO2004038801A2 (en) 2002-10-22 2003-10-02 Light emitting diode assembly for ac operation and methods of fabricating same

Country Status (9)

Country Link
US (1) US7009199B2 (en)
EP (1) EP1554755A2 (en)
JP (1) JP2006504265A (en)
KR (1) KR20050074491A (en)
CN (1) CN1706043A (en)
AU (1) AU2003277253A1 (en)
CA (1) CA2501686A1 (en)
TW (1) TW200409381A (en)
WO (1) WO2004038801A2 (en)

Cited By (5)

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US9167995B2 (en) 2005-03-01 2015-10-27 Cercacor Laboratories, Inc. Physiological parameter confidence measure
US9576939B2 (en) 2006-03-31 2017-02-21 Seoul Semiconductor Co., Ltd. Light emitting device and lighting system having the same
US12127833B2 (en) 2022-12-21 2024-10-29 Willow Laboratories, Inc. Physiological measurement system with automatic wavelength adjustment

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EP1554755A2 (en) 2005-07-20
AU2003277253A8 (en) 2004-05-13
AU2003277253A1 (en) 2004-05-13
US7009199B2 (en) 2006-03-07
TW200409381A (en) 2004-06-01
WO2004038801A2 (en) 2004-05-06
US20040075399A1 (en) 2004-04-22
CA2501686A1 (en) 2004-05-06
KR20050074491A (en) 2005-07-18
JP2006504265A (en) 2006-02-02
CN1706043A (en) 2005-12-07

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